mirror of
https://github.com/esphome/esphome-docs.git
synced 2024-11-10 10:11:29 +01:00
228 lines
7.7 KiB
ReStructuredText
228 lines
7.7 KiB
ReStructuredText
MicroNova based pellet stove
|
|
============================
|
|
|
|
.. seo::
|
|
:description: Instructions for setting up a MicroNova board based pellet stove in ESPHome.
|
|
|
|
The MicroNova component allows you to integrate a pellet stove with a MicroNova board in ESPHome.
|
|
It uses :ref:`UART <uart>` for communication.
|
|
|
|
The :ref:`UART <uart>` must be configured with a baud rate 1200, 8 data bits, 2 stop bits, no parity, no flow control.
|
|
|
|
.. warning::
|
|
|
|
MicroNova bords come in various flavours. This code is only tested on an ExtraFlame Ketty Evo 2.0 stove. The protocol is not
|
|
documented but has been reverse engineerd by others. See the links below for all the info that helped me.
|
|
The different sensors, buttons and stove switch may require specific **memory_location** and **memory_address** parameters that
|
|
match your MicroNova specific board.
|
|
|
|
Also, switching your stove on or off can behave different on the various MicroNova flavours.
|
|
|
|
Use this component at your own risk.
|
|
|
|
Connecting your stove
|
|
---------------------
|
|
|
|
Most MicroNova based pellet stoves have a serial output. In most cases this output has 4 pins: GND, 5v, 20V and DATA.
|
|
|
|
.. figure:: images/micronova_serial.png
|
|
:align: center
|
|
:width: 50.0%
|
|
|
|
.. figure:: images/micronova_serial_layout.png
|
|
:align: center
|
|
:width: 50.0%
|
|
|
|
You will have to build a simple circuit to interface with your stove. It is based on optocouplers for galvanic separation and logic
|
|
level shifting between 5v and 3V3.
|
|
|
|
.. figure:: images/micronova_optocouplers.png
|
|
:align: center
|
|
:width: 100.0%
|
|
|
|
Optocoupler interface circuit (credit: philibertc)
|
|
|
|
|
|
|
|
See the references below for all the details about te circuit.
|
|
|
|
You can use the 5V output from the stove to power the ESP module, but you will have to put a voltage regulator in between to
|
|
get 3v3.
|
|
|
|
Component/Hub
|
|
-------------
|
|
|
|
.. code-block:: yaml
|
|
|
|
micronova:
|
|
enable_rx_pin: GPIOXX
|
|
|
|
Configuration variables:
|
|
~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
- **enable_rx_pin** (**Required**, :ref:`config-pin`): Output pin to be used to switch the line between RX and TX.
|
|
- **update_interval** (*Optional*, :ref:`config-time`): The interval that the sensors should be checked.
|
|
Defaults to 60 seconds.
|
|
|
|
.. note::
|
|
|
|
For all text sensors, sensors, numbers, buttons and switches hereafter most of the the default **memory_location** and **memory_address** parameters will work so you should
|
|
not specify them. However your Micronova boad may require you to specify alternate values. So every text sensor, button,
|
|
switch or number accepts these parameters:
|
|
|
|
- **memory_location** (*Optional*): The memory location where the parameter must be read. For most stoves this is 0x00 for RAM
|
|
or 0x20 for EPROM.
|
|
- **memory_address** (*Optional*): The address where the parameter is stored.
|
|
|
|
|
|
Text Sensors
|
|
------------
|
|
|
|
.. code-block:: yaml
|
|
|
|
text_sensor:
|
|
- platform: micronova
|
|
stove_state:
|
|
name: Stove status
|
|
|
|
Configuration variables:
|
|
~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
- **stove_state** (*Optional*): The current stove state.
|
|
All options from :ref:`Text Sensor <config-text_sensor>`.
|
|
|
|
Sensors
|
|
-------
|
|
|
|
.. code-block:: yaml
|
|
|
|
sensor:
|
|
- platform: micronova
|
|
room_temperature:
|
|
name: Room temperature
|
|
fumes_temperature:
|
|
name: Fumes temperature
|
|
stove_power:
|
|
name: Stove power level
|
|
fan_speed:
|
|
fan_rpm_offset: 240
|
|
name: Fan RPM
|
|
water_temperature:
|
|
name: Water temperature
|
|
water_pressure:
|
|
name: Water pressure
|
|
memory_address_sensor:
|
|
memory_location: 0x20
|
|
memory_address: 0x7d
|
|
name: Custom Address sensor
|
|
|
|
Configuration variables:
|
|
~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
- **room_temperature** (*Optional*): Sensor that reads the stoves ambient room temperature.
|
|
All options from :ref:`Sensor <config-sensor>`.
|
|
- **fumes_temperature** (*Optional*): Fumes temperature.
|
|
All options from :ref:`Sensor <config-sensor>`.
|
|
- **stove_power** (*Optional*): Current stove power.
|
|
All options from :ref:`Sensor <config-sensor>`.
|
|
- **fan_speed** (*Optional*): Current fan speed. The raw value from the stove is multiplied by 10 + ``fan_rpm_offset``.
|
|
|
|
- **fan_rpm_offset** (*Optional*, integer): Offset the reported RPM value. Must be between 0 and 255. Defaults to 0.
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
- **water_temperature** (*Optional*): Internal boiler water termperature.
|
|
All options from :ref:`Sensor <config-sensor>`.
|
|
- **water_pressure** (*Optional*): Internal boiler water pressure.
|
|
All options from :ref:`Sensor <config-sensor>`.
|
|
- **memory_address_sensor** (*Optional*): Can be any **memory_location** / **memory_address** you want to track. Usefull
|
|
when you don't know where the parameter is for your stove is.
|
|
All options from :ref:`Sensor <config-sensor>`.
|
|
|
|
|
|
Numbers
|
|
-------
|
|
|
|
.. code-block:: yaml
|
|
|
|
number:
|
|
- platform: micronova
|
|
thermostat_temperature:
|
|
name: Thermostat temperature
|
|
step: 0.5
|
|
power_level:
|
|
name: Thermostat temperature
|
|
|
|
Configuration variables:
|
|
~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
- **thermostat_temperature** (*Optional*): Number that holds the current stove thermostat value.
|
|
- **step** (*Optional*): Temperature step. This value is used to multiply/devide the raw value when setting/reading the **thermostat_temperature**
|
|
- All other options from :ref:`Number <config-number>`.
|
|
- **power_level** (*Optional*): Number that sets/reads the requested stove power.
|
|
All options from :ref:`Number <config-number>`.
|
|
|
|
.. note::
|
|
|
|
Besides **memory_location** and **memory_address** you can specify a specific **memory_write_location** parameter.
|
|
This parameter is a hex value for the **memory_location** where the new thermostat value must be written.
|
|
|
|
- **memory_write_location** (*Optional*): The **memory_location** where to write the new thermostat value.
|
|
|
|
Buttons
|
|
-------
|
|
|
|
.. code-block:: yaml
|
|
|
|
button:
|
|
- platform: micronova
|
|
custom_button:
|
|
name: Custom button
|
|
memory_location: 0x20
|
|
memory_address: 0x7d
|
|
memory_data: 0x08
|
|
|
|
Configuration variables:
|
|
~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
- **custom_button** (*Optional*): Write the hex value **memory_data** to a **memory_location** and **memory_address**
|
|
All options from :ref:`Button <config-button>`.
|
|
|
|
.. note::
|
|
|
|
Besides **memory_location** and **memory_address** you must specify a specific **memory_data** parameter.
|
|
|
|
- **memory_data** (*Required*): The hex value to be written to the **memory_location** and **memory_address**.
|
|
|
|
Switches
|
|
--------
|
|
|
|
.. code-block:: yaml
|
|
|
|
switch:
|
|
- platform: micronova
|
|
stove:
|
|
name: Stove on/off switch
|
|
|
|
Configuration variables:
|
|
~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
- **stove** (*Optional*): Turn the stove on or off. This switch will also reflect the current stove state.
|
|
If the **stove_state** is "Off" the switch will be off, in all other states, the switch wil be on.
|
|
All options from :ref:`Switch <config-switch>`.
|
|
|
|
.. note::
|
|
|
|
Besides **memory_location** and **memory_address** you can specify specific **memory_data_on** and **memory_data_off** parameters.
|
|
These parameters contain the hex value to be written to the **memory_location** and **memory_address** when the switch
|
|
turns on or off.
|
|
|
|
- **memory_data_on** (*Optional*): The data to write when turning the switch on.
|
|
- **memory_data_off** (*Optional*): The data to write when turning the switch off.
|
|
|
|
See Also
|
|
--------
|
|
|
|
- `ridiculouslab micronova <https://www.ridiculouslab.com/arguments/iot/stufa/micronova_en.php>`__
|
|
- `philibertc / micronova_controller <https://github.com/philibertc/micronova_controller/>`__
|
|
- `eni23 / micronova-controller <https://github.com/eni23/micronova-controller>`__
|
|
- :ghedit:`Edit`
|